Since winter and spring, the long-term rain and fog, low temperature ice and snow weather has caused adverse effects on the growth of the green manure crop (Ziyunying) in Anxiang County. The low temperature and waterlogging caused a large number of dead seedlings, weak growth and slow growth. According to the current growth situation, the following several training measures should be done:
First, strengthen field inspections. It is necessary to carry out field inspections on a regular basis, focusing on the elimination of waterlogging, preventing the trampling of livestock and poultry and foraging the growth of green manure.
Second, timely clearing the ditch. It is necessary to clear the ditch and drain the waterlogged fields in time to prevent rotten seedlings. The standard of the drainage ditch excavated before and after the planting of Chinese milk vetch is not high, and the dredging should be dredged in time to keep the drainage of the ditch.
3. Apply nitrogen fertilizer as appropriate. Astragalus genus Rhizobium crops, so the early fertilization should be based on phosphate fertilizer, suitable for nitrogen fertilizer, so as to achieve phosphorus for nitrogen, with small fertilizer to raise large fertilizer. After spring warming, the second and third types of seedlings with poor growth, especially the remaining seedlings, should be topped with urea 10 kg per acre at the initial flowering stage, and the yield increase effect is remarkable.
Fourth, do a good job in the prevention and control of pests and diseases. In the early stage of sclerotinia, 70% of the wettable thiophanate or 50% of the wettable carbendazim 50-100 g is sprayed against 1000 times of water. After the temperature returns in March, powdery mildew may occur. It is necessary to pay attention to ditch drainage to prevent drought and suffering from sputum. Use 20% triadimefon emulsifiable concentrate 5-10 g to 50 kg of water or 30% Teflon WP 20- 40 grams of water against 1000 times spray control. The leaf miner is sprayed with 25% anti-Pulse 15 grams per acre and 50 kg water spray. Weeds are dominated by annual monocotyledonous plants. When most of the grass weeds in the field enter the 3-5 leaf stage, they use Jingaisi (fine quizalofop) or grass cover energy (highly effective flupirtine). According to the dosage per acre, spray evenly on 15-20 kg of water.
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